◆  Xi'an Tong Da (Tong Sheng) Patent & Trademark Agency Co., Ltd Xi'an Jiaotong University, the predecessor of the Patent Office, established in 1985. 

    ◆  Xi'an Tong Da (Tong Sheng) adhering to the "responsibility, rigorous, honor, passion," the concept of continuous improvement, innovative, customer business success in China to provide the most effective legal and technical services. 

    ◆  After 20 years of sustained, stable development, Xi'an Tong Da (Tong Sheng) Patent & Trademark Agency Co., Ltd. has developed into more than 40 staff members of the domestic large-scale IP firm, its customers in some parts of the country and abroad. This well-trained team of professional intellectual property services include: 25 patent attorneys, seven lawyers, including 8 professors, 12 senior engineers, professional 4 people have a master's degree. 

    ◆  Patent in 2009 the amount had reached 2496, the annual patent agent in Shaanxi province accounted for 20%, and the annual volume agency for the Shaanxi Province No. 1 for ten consecutive years. 

    ◆  Long-term focus of the work is full cooperation with enterprises and institutions: cooperation between enterprises and institutions are: the Rainbow Group, China's Western Electric Electric Co., Ltd., the National Electric Power Group, Shaanxi Electric Power Group, Datang Telecom Co., Ltd., Xi'an Jiaotong University, Shaanxi University of Technology, Northwest University, Xi'an Thermal Power Research Institute Limited.
 
    ◆  13 countries and regions with more than 40 law firms, research institutions to maintain good business relationship. 

    ◆  The company set up five offices across the province, can provide convenient services to customers around. 

    ◆  Agencies in the Northwest region of patent applications in statistics, Xi'an Tong Da (Tong Sheng)  ranked No. 1 for 10 consecutive years.
 
Team of professional maturity
     25 years of practice, in technical strength, experience, legal knowledge, the train and bring up a number of outstanding intellectual property professionals can offer the best solution.

Scientific and professional management
     The management company has always progress as the basis for continuous improvement of management systems, continues to introduce new management in the industry created a new model, from the standard process, coordination among various departments responsible for different aspects, such personnel will ensure that the every customer can enjoy to the most professional, efficient and comprehensive intellectual property services.

Full cooperation of enterprises
      A long term focus on full cooperation with enterprises and institutions, the have and the Rainbow Group, China's Western Electric Electric Co., Ltd., Xi'an Jiaotong University, Shaanxi University of Science and other enterprises established long-term and comprehensive cooperation. Not only do enterprises in patent applications, advocacy, consulting, services, and helping companies develop intellectual property strategic planning and systems, and intellectual property management system for enterprises to establish and patent licensing for the enterprises and institutions have done a lot of work, achieved encouraging results.

Sound quality management
      To ensure the quality of the company agent, the company implemented to write four reviews, including two reviews, two forms of review, cost three-level review to ensure the quality of the agent.

Outlets throughout the province
      High-tech Industrial Development Zone in Xi'an, Xi'an Economic and Technological Development Zone, Yangling Agriculture Development Zone, Weinan region, with offices in Baoji.